Tuesday, January 17, 2017

Battery with Inbuilt 'Fire extinguisher' developed

Researchers have designed a lithium-ion battery containing a fire-extinguishing material, which is released if the battery gets too hot.
Flame retardant triphenyl phosphate (TPP) sits inside a shell within the electrolyte fluid. The shell melts when the temperature reaches 150C (302F), releasing the chemical compound.
In tests, the battery fires were extinguished in 0.4 seconds.Lithium-ion batteries power many devices but are a known fire hazard.

The Stanford University Research Team's peer-reviewed paper has been published by the journal Science advances.
TPP has happened to their previous attempts to incorporate batteries inside the shell without performance.
If a lithium-ion battery charges quickly slips through the net or cell to a tiny manufacturing error can result in a short circuit which can lead to fire.
In February 2016, the US National transportation Safety board issued a warning about lithium batteries in cargo aeroplane, describing them as "a fire and explosion ignition source".
While Samsung has not yet released the results of its investigation into what caused some of its Galaxy smartphones Note 7 to catch fire last year, local reports have suggested it has found that the batteries were responsible.

However, their conclusion was that the firm would not confirm this.
"We appreciate your patience and continued as well as understand the need for answers that our valued customers, partners and stakeholders," it said in a statement.

"We are working diligently to ensure that we have the more information we have will provide a comprehensive update in the coming weeks ago and the final report."
Better batteries
Battery technology has been closer to evolve than many battery-powered devices that rely on it, said Ian Hogg, Senior Analyst at IHS,
"There is enormous pressure to improve battery tech. The areas of mobile devices and a range of other products that it's holding back," he told the BBC.
"Manufacturers are balancing consumer demand have been out for longer-lived batteries, larger displays and more powerful devices with better graphics and more detailed with the sophistication of battery tech.
"It's very difficult to push ups batteries and a battery capacity of any device there is always a risk that could fail."

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